Sash-lock.



J.'E.TURNER.

SASH LOCK. APPLICATION FILED nsc.a1.191'5.

Patented A111. 11, 1916.

THE COLUMBIA PLANDGRAPH ,CO" WASHINGTON, D. C.

S A f v SASH-LOCK. v

Specification of lLetters latent.

PatenteolApr. 11, 1916.

Application filed December 31, 1915. Serial No. 69,637.

To all whom it may concern: a I

Be it known that I, JOSEPH E. T RNER, a citizen of the United States, and a resident of Kansas City, in the county of Jackson and State of Missouri, have invented a certain new and useful Improvement in Sash Locks, of which the following is a specification. 1

sash looks.

The object of my invention is to provide a sash lock of novel construction, which is economical to manufacture, not liableto get out of order and durable, and which is efficient for the purpose of drawing the two sashes of a window closely together, and to prevent unauthorized opening of the window from the outside.

The novel features of my invention are fully described and claimed hereinafter.

In the accompanying drawing, which illustrates the preferred embodiment of my invention, Figure 1 is a vertical sectional view of my improved sash lock shown applied to the sashes of a window, Fig. 2 is an elevation of the lower rail of the upper sash with the screw threaded plate for engaging the screw attached thereto. Fig. 8 is an elevation of the upper rail of the lower sash with the screw and the plate in which it slides mounted thereon.

Similar reference characters designate similar parts in the difierent views.

1 designates the lower 'rail of the upper sash, and 2 a plate attached by screws'3 to the forward side thereof. The plate 2 is provided with 7 adapted to have fitted removably therein the threaded outer end of a horizontal screw 5, which is provided at its forward end with a head 6 dis osed forward or at the inner side of a plate which is secured by screws 8 to the inner side of the upper rail 9 of the lower sash. The plate 7 is provided with a hole 10 in which the screw 5 is longitudinally movable. Preferably, the hole 10 is horizontally' oblong so as to permit lateral movement therein of the screw 5 to accommodate the parts to any relatively lateral movement between the two sashes. To receive the screw 5, the rail 1 has a hole 4.

a screw threaded hole 4 -may be made without departing from The screw 5 isprovided intermediate of the head 6 and thethreaded end of the screw with a stop which, preferably, is lon-V "gitudlnally adjustable to accommodate the 7 device to sashes of different thicknesses. In

the drawingthis stop is shown as being a collar 11, which is adapted to be fitted in either of two annular peripheral grooves My invention relates toimprovements in -12. The collar is preferably a transversely divided ring of resilient material,- suoh' as spring vwire, whereby the collar, if of slightly less internal diameter than the screw shank,"will contract when fitted in either of the grooves 12, so as to be tightly clamped on the screw. The collar 11 is adapted to engage the plate 7 ,after the.

they are to be used, the sashes are moved to V the closed position, shown in Fig. 1, in which position the screw 5 is adapted to enter the hole 4, when the screw has been movedto a position for engagement with the plate 2, andthen turned in the proper direction. The head 6 bearing against the plate 7 will cause the screw on being properly turned to draw the rails 1 and 9 ti htl -t ge y reversing this operation, and then withdrawing the screw 5 until the collar 11 strikes the plate 7 the two sashes will be released from each other. The screw cannot be released from the outside of the window, so that when engaged with the plate 2, unaiithorized opening of the window cannot be effected without theglass of the sash being 'broken, or the stops of the window removed.

I do not limit my invention to the structure shown and described, as modifications, f

within the scope (of the appended claim, the spirit of my'invention.

What I claim is In a sash look, a screw having at one end a head and screw-threaded at the other end, and provided with a stop, a plate having means for attachment to the'inner side' of a sash. rail and having a screw-threaded hole adapted to receive the threaded end of 

